Hey everyone, hope to get some info on this meter, not really looking to sell. I am going to upload a pic hopefully I can figure it out. It looks different from the regular model 50 it has 2 keys and second compartment is on side with slot in front for ticket ? Has a plague that says read directions with arrow to slot. I only found one picture online.
I can't get pictures to work need to read more, though here is a link to a picture I found.